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A318041 as a simple table

n a(n)
1 1
2 3
3 21
4 140
5 905
6 6179
7 42793
8 297043
9 2056698
10 14234986
11 98543469
12 682235511
13 4723208829
14 32699080489
15 226377712742
16 1567228238886
17 10850029939485
18 75115505261838
19 520029800880263
20 3600202027360686
21 24924446019234303

[1,3,21,140,905,6179,42793,297043,2056698,
 14234986,98543469,682235511,4723208829,
 32699080489,226377712742,1567228238886,
 10850029939485,75115505261838,520029800880263,
 3600202027360686,24924446019234303]

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Last modified August 15 07:14 EDT 2022. Contains 356128 sequences. (Running on oeis4.)